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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98778

binder: fix is_failure flag for superseded transaction cleanup

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: binder: fix is_failure flag for superseded transaction cleanup When a TF_UPDATE_TXN transaction supersedes a pending async transaction, binder_release_entire_buffer() is called with is_failure=false. Since the superseded transaction was never delivered, binder_apply_fd_fixups() was never called and no fds were installed in the target process. With is_failure=false, the BINDER_TYPE_FDA cleanup handler interprets stale buffer contents as installed fd numbers and passes them to binder_deferred_fd_close(), closing unrelated file descriptors. Pass is_failure=true since the transaction was never delivered to the target, matching the semantics of all other undelivered-transaction cleanup paths.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 9864bb4801331daa48514face9d0f4861e4d485b to < e9b364e46d594c2ec663c9c49f10c1ca541ecc0faffected
  • 9864bb4801331daa48514face9d0f4861e4d485b to < 60a9f7323ae7318a7cce0d387c318da24f1e8726affected
  • 9864bb4801331daa48514face9d0f4861e4d485b to < 86cdcc87d4ba60aebf94ba3346b3c900c5cd79ffaffected
  • 9864bb4801331daa48514face9d0f4861e4d485b to < 1ab671b50714ad8e359cf37eb041d8044319ccdcaffected
  • 9864bb4801331daa48514face9d0f4861e4d485b to < 22c135635fdd9816c0ef140d6de7b2e4fdf73e89affected

Linux Linux

Default version status: affected

  • 6.0affected
  • 0 to < 6.0unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.113 to ≤ 6.12.*unaffected
  • 6.18.56 to ≤ 6.18.*unaffected
  • 7.2.10 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References